content: /* ===========================================================
   * JFreeChart : a free chart library for the Java(tm) platform
   * ===========================================================
   *
   * (C) Copyright 2000-2012, by Object Refinery Limited and Contributors.
   *
   * Project Info:  http://www.jfree.org/jfreechart/index.html
   *
   * This library is free software; you can redistribute it and/or modify it
   * under the terms of the GNU Lesser General Public License as published by
   * the Free Software Foundation; either version 2.1 of the License, or
   * (at your option) any later version.
   *
   * This library is distributed in the hope that it will be useful, but
   * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
   * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
   * License for more details.
   *
   * You should have received a copy of the GNU Lesser General Public
   * License along with this library; if not, write to the Free Software
   * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301,
   * USA.
   *
   * [Oracle and Java are registered trademarks of Oracle and/or its affiliates.
   * Other names may be trademarks of their respective owners.]
   *
   * -------------------------
   * LineAndShapeRenderer.java
   * -------------------------
   * (C) Copyright 2001-2012, by Object Refinery Limited and Contributors.
   *
   * Original Author:  David Gilbert (for Object Refinery Limited);
   * Contributor(s):   Mark Watson (www.markwatson.com);
   *                   Jeremy Bowman;
   *                   Richard Atkinson;
   *                   Christian W. Zuckschwerdt;
   *                   Peter Kolb (patch 2497611);
   *
   * Changes
   * -------
   * 23-Oct-2001 : Version 1 (DG);
   * 15-Nov-2001 : Modified to allow for null data values (DG);
   * 16-Jan-2002 : Renamed HorizontalCategoryItemRenderer.java
   *               --> CategoryItemRenderer.java (DG);
   * 05-Feb-2002 : Changed return type of the drawCategoryItem method from void
   *               to Shape, as part of the tooltips implementation (DG);
   * 11-May-2002 : Support for value label drawing (JB);
   * 29-May-2002 : Now extends AbstractCategoryItemRenderer (DG);
   * 25-Jun-2002 : Removed redundant import (DG);
   * 05-Aug-2002 : Small modification to drawCategoryItem method to support URLs
   *               for HTML image maps (RA);
   * 26-Sep-2002 : Fixed errors reported by Checkstyle (DG);
   * 11-Oct-2002 : Added new constructor to incorporate tool tip and URL
   *               generators (DG);
   * 24-Oct-2002 : Amendments for changes in CategoryDataset interface and
   *               CategoryToolTipGenerator interface (DG);
   * 05-Nov-2002 : Base dataset is now TableDataset not CategoryDataset (DG);
   * 06-Nov-2002 : Renamed drawCategoryItem() --> drawItem() and now using axis
   *               for category spacing (DG);
   * 17-Jan-2003 : Moved plot classes to a separate package (DG);
   * 10-Apr-2003 : Changed CategoryDataset to KeyedValues2DDataset in drawItem()
   *               method (DG);
   * 12-May-2003 : Modified to take into account the plot orientation (DG);
   * 29-Jul-2003 : Amended code that doesn't compile with JDK 1.2.2 (DG);
   * 30-Jul-2003 : Modified entity constructor (CZ);
   * 22-Sep-2003 : Fixed cloning (DG);
   * 10-Feb-2004 : Small change to drawItem() method to make cut-and-paste
   *               override easier (DG);
   * 16-Jun-2004 : Fixed bug (id=972454) with label positioning on horizontal
   *               charts (DG);
   * 15-Oct-2004 : Updated equals() method (DG);
   * 05-Nov-2004 : Modified drawItem() signature (DG);
   * 11-Nov-2004 : Now uses ShapeUtilities class to translate shapes (DG);
   * 27-Jan-2005 : Changed attribute names, modified constructor and removed
   *               constants (DG);
   * 01-Feb-2005 : Removed unnecessary constants (DG);
   * 15-Mar-2005 : Fixed bug 1163897, concerning outlines for shapes (DG);
   * 13-Apr-2005 : Check flags that control series visibility (DG);
   * 20-Apr-2005 : Use generators for legend labels, tooltips and URLs (DG);
   * 09-Jun-2005 : Use addItemEntity() method (DG);
   * ------------- JFREECHART 1.0.x ---------------------------------------------
   * 25-May-2006 : Added check to drawItem() to detect when both the line and
   *               the shape are not visible (DG);
   * 20-Apr-2007 : Updated getLegendItem() for renderer change (DG);
   * 17-May-2007 : Set datasetIndex and seriesIndex in getLegendItem() (DG);
   * 18-May-2007 : Set dataset and seriesKey for LegendItem (DG);
   * 24-Sep-2007 : Deprecated redundant fields/methods (DG);
   * 27-Sep-2007 : Added option to offset series x-position within category (DG);
   * 17-Jun-2008 : Apply legend shape, font and paint attributes (DG);
   * 26-Jun-2008 : Added crosshair support (DG);
   * 14-Jan-2009 : Added support for seriesVisible flags (PK);
   * 15-Jun-2012 : Remove JCommon dependency (DG);
   *
   */
  
  package org.jfree.chart.renderer.category;
  
  import java.awt.Graphics2D;
  import java.awt.Paint;
  import java.awt.Shape;
  import java.awt.Stroke;
  import java.awt.geom.Line2D;
  import java.awt.geom.Rectangle2D;
  import java.io.Serializable;
  
  import org.jfree.chart.LegendItem;
  import org.jfree.chart.axis.CategoryAxis;
  import org.jfree.chart.axis.ValueAxis;
  import org.jfree.chart.util.BooleanList;
  import org.jfree.chart.util.ObjectUtilities;
  import org.jfree.chart.util.PublicCloneable;
  import org.jfree.chart.util.ShapeUtilities;
  import org.jfree.chart.entity.EntityCollection;
  import org.jfree.chart.event.RendererChangeEvent;
  import org.jfree.chart.plot.CategoryPlot;
  import org.jfree.chart.plot.PlotOrientation;
  import org.jfree.data.category.CategoryDataset;
  
  /**
   * A renderer that draws shapes for each data item, and lines between data
   * items (for use with the {@link CategoryPlot} class).
   * The example shown here is generated by the <code>LineChartDemo1.java</code>
   * program included in the JFreeChart Demo Collection:
   * <br><br>
   * <img src="../../../../../images/LineAndShapeRendererSample.png"
   * alt="LineAndShapeRendererSample.png" />
   */
  public class LineAndShapeRenderer extends AbstractCategoryItemRenderer
          implements Cloneable, PublicCloneable, Serializable {
  
      /** For serialization. */
      private static final long serialVersionUID = -197749519869226398L;
  
      /**
       * A table of flags that control (per series) whether or not lines are
       * visible.
       */
      private BooleanList seriesLinesVisible;
  
      /**
       * A flag indicating whether or not lines are drawn between non-null
       * points.
       */
      private boolean baseLinesVisible;
  
      /**
       * A table of flags that control (per series) whether or not shapes are
       * visible.
       */
      private BooleanList seriesShapesVisible;
  
      /** The default value returned by the getShapeVisible() method. */
      private boolean baseShapesVisible;
  
      /**
       * A table of flags that control (per series) whether or not shapes are
       * filled.
       */
      private BooleanList seriesShapesFilled;
  
      /** The default value returned by the getShapeFilled() method. */
      private boolean baseShapesFilled;
  
      /**
       * A flag that controls whether the fill paint is used for filling
       * shapes.
       */
      private boolean useFillPaint;
  
      /** A flag that controls whether outlines are drawn for shapes. */
      private boolean drawOutlines;
  
      /**
       * A flag that controls whether the outline paint is used for drawing shape
       * outlines - if not, the regular series paint is used.
       */
      private boolean useOutlinePaint;
  
      /**
       * A flag that controls whether or not the x-position for each item is
       * offset within the category according to the series.
       *
       * @since 1.0.7
       */
      private boolean useSeriesOffset;
  
      /**
       * The item margin used for series offsetting - this allows the positioning
       * to match the bar positions of the {@link BarRenderer} class.
       *
       * @since 1.0.7
       */
      private double itemMargin;
  
      /**
       * Creates a renderer with both lines and shapes visible by default.
       */
      public LineAndShapeRenderer() {
          this(true, true);
      }
  
      /**
       * Creates a new renderer with lines and/or shapes visible.
       *
       * @param lines  draw lines?
       * @param shapes  draw shapes?
       */
      public LineAndShapeRenderer(boolean lines, boolean shapes) {
          super();
          this.seriesLinesVisible = new BooleanList();
          this.baseLinesVisible = lines;
          this.seriesShapesVisible = new BooleanList();
          this.baseShapesVisible = shapes;
          this.seriesShapesFilled = new BooleanList();
          this.baseShapesFilled = true;
          this.useFillPaint = false;
          this.drawOutlines = true;
          this.useOutlinePaint = false;
          this.useSeriesOffset = false;  // preserves old behaviour
          this.itemMargin = 0.0;
      }
  
      // LINES VISIBLE
  
      /**
       * Returns the flag used to control whether or not the line for an item is
       * visible.
       *
       * @param series  the series index (zero-based).
       * @param item  the item index (zero-based).
       *
       * @return A boolean.
       */
      public boolean getItemLineVisible(int series, int item) {
          Boolean flag = getSeriesLinesVisible(series);
          if (flag != null) {
              return flag;
          }
          else {
              return this.baseLinesVisible;
          }
      }
  
      /**
       * Returns the flag used to control whether or not the lines for a series
       * are visible.
       *
       * @param series  the series index (zero-based).
       *
       * @return The flag (possibly <code>null</code>).
       *
       * @see #setSeriesLinesVisible(int, Boolean)
       */
      public Boolean getSeriesLinesVisible(int series) {
          return this.seriesLinesVisible.getBoolean(series);
      }
  
      /**
       * Sets the 'lines visible' flag for a series and sends a
       * {@link RendererChangeEvent} to all registered listeners.
       *
       * @param series  the series index (zero-based).
       * @param flag  the flag (<code>null</code> permitted).
       *
       * @see #getSeriesLinesVisible(int)
       */
      public void setSeriesLinesVisible(int series, Boolean flag) {
          this.seriesLinesVisible.setBoolean(series, flag);
          fireChangeEvent();
      }
  
      /**
       * Sets the 'lines visible' flag for a series and sends a
       * {@link RendererChangeEvent} to all registered listeners.
       *
       * @param series  the series index (zero-based).
       * @param visible  the flag.
       *
       * @see #getSeriesLinesVisible(int)
       */
      public void setSeriesLinesVisible(int series, boolean visible) {
          setSeriesLinesVisible(series, Boolean.valueOf(visible));
      }
  
      /**
       * Returns the base 'lines visible' attribute.
       *
       * @return The base flag.
       *
       * @see #getBaseLinesVisible()
       */
      public boolean getBaseLinesVisible() {
          return this.baseLinesVisible;
      }
  
      /**
       * Sets the base 'lines visible' flag and sends a
       * {@link RendererChangeEvent} to all registered listeners.
       *
       * @param flag  the flag.
       *
       * @see #getBaseLinesVisible()
       */
      public void setBaseLinesVisible(boolean flag) {
          this.baseLinesVisible = flag;
          fireChangeEvent();
      }
  
      // SHAPES VISIBLE
  
      /**
       * Returns the flag used to control whether or not the shape for an item is
       * visible.
       *
       * @param series  the series index (zero-based).
       * @param item  the item index (zero-based).
       *
       * @return A boolean.
       */
      public boolean getItemShapeVisible(int series, int item) {
          Boolean flag = getSeriesShapesVisible(series);
          if (flag != null) {
              return flag;
          }
          else {
              return this.baseShapesVisible;
          }
      }
  
      /**
       * Returns the flag used to control whether or not the shapes for a series
       * are visible.
       *
       * @param series  the series index (zero-based).
       *
       * @return A boolean.
       *
       * @see #setSeriesShapesVisible(int, Boolean)
       */
      public Boolean getSeriesShapesVisible(int series) {
          return this.seriesShapesVisible.getBoolean(series);
      }
  
      /**
       * Sets the 'shapes visible' flag for a series and sends a
       * {@link RendererChangeEvent} to all registered listeners.
       *
       * @param series  the series index (zero-based).
       * @param visible  the flag.
       *
       * @see #getSeriesShapesVisible(int)
       */
      public void setSeriesShapesVisible(int series, boolean visible) {
          setSeriesShapesVisible(series, Boolean.valueOf(visible));
      }
  
      /**
       * Sets the 'shapes visible' flag for a series and sends a
       * {@link RendererChangeEvent} to all registered listeners.
       *
       * @param series  the series index (zero-based).
       * @param flag  the flag.
       *
       * @see #getSeriesShapesVisible(int)
       */
      public void setSeriesShapesVisible(int series, Boolean flag) {
          this.seriesShapesVisible.setBoolean(series, flag);
          fireChangeEvent();
      }
  
      /**
       * Returns the base 'shape visible' attribute.
       *
       * @return The base flag.
       *
       * @see #setBaseShapesVisible(boolean)
       */
      public boolean getBaseShapesVisible() {
          return this.baseShapesVisible;
      }
  
      /**
       * Sets the base 'shapes visible' flag and sends a
       * {@link RendererChangeEvent} to all registered listeners.
       *
       * @param flag  the flag.
       *
       * @see #getBaseShapesVisible()
       */
      public void setBaseShapesVisible(boolean flag) {
          this.baseShapesVisible = flag;
          fireChangeEvent();
      }
  
      /**
       * Returns <code>true</code> if outlines should be drawn for shapes, and
       * <code>false</code> otherwise.
       *
       * @return A boolean.
       *
       * @see #setDrawOutlines(boolean)
       */
      public boolean getDrawOutlines() {
          return this.drawOutlines;
      }
  
      /**
       * Sets the flag that controls whether outlines are drawn for
       * shapes, and sends a {@link RendererChangeEvent} to all registered
       * listeners.
       * <P>
       * In some cases, shapes look better if they do NOT have an outline, but
       * this flag allows you to set your own preference.
       *
       * @param flag  the flag.
       *
       * @see #getDrawOutlines()
       */
      public void setDrawOutlines(boolean flag) {
          this.drawOutlines = flag;
          fireChangeEvent();
      }
  
      /**
       * Returns the flag that controls whether the outline paint is used for
       * shape outlines.  If not, the regular series paint is used.
       *
       * @return A boolean.
       *
       * @see #setUseOutlinePaint(boolean)
       */
      public boolean getUseOutlinePaint() {
          return this.useOutlinePaint;
      }
  
      /**
       * Sets the flag that controls whether the outline paint is used for shape
       * outlines, and sends a {@link RendererChangeEvent} to all registered
       * listeners.
       *
       * @param use  the flag.
       *
       * @see #getUseOutlinePaint()
       */
      public void setUseOutlinePaint(boolean use) {
          this.useOutlinePaint = use;
          fireChangeEvent();
      }
  
      // SHAPES FILLED
  
      /**
       * Returns the flag used to control whether or not the shape for an item
       * is filled. The default implementation passes control to the
       * <code>getSeriesShapesFilled</code> method. You can override this method
       * if you require different behaviour.
       *
       * @param series  the series index (zero-based).
       * @param item  the item index (zero-based).
       *
       * @return A boolean.
       */
      public boolean getItemShapeFilled(int series, int item) {
          return getSeriesShapesFilled(series);
      }
  
      /**
       * Returns the flag used to control whether or not the shapes for a series
       * are filled.
       *
       * @param series  the series index (zero-based).
       *
       * @return A boolean.
       */
      public boolean getSeriesShapesFilled(int series) {
  
          Boolean flag = this.seriesShapesFilled.getBoolean(series);
          if (flag != null) {
              return flag;
          }
          else {
              return this.baseShapesFilled;
          }
  
      }
  
      /**
       * Sets the 'shapes filled' flag for a series and sends a
       * {@link RendererChangeEvent} to all registered listeners.
       *
       * @param series  the series index (zero-based).
       * @param filled  the flag.
       *
       * @see #getSeriesShapesFilled(int)
       */
      public void setSeriesShapesFilled(int series, Boolean filled) {
          this.seriesShapesFilled.setBoolean(series, filled);
          fireChangeEvent();
      }
  
      /**
       * Sets the 'shapes filled' flag for a series and sends a
       * {@link RendererChangeEvent} to all registered listeners.
       *
       * @param series  the series index (zero-based).
       * @param filled  the flag.
       *
       * @see #getSeriesShapesFilled(int)
       */
      public void setSeriesShapesFilled(int series, boolean filled) {
          // delegate
          setSeriesShapesFilled(series, Boolean.valueOf(filled));
      }
  
      /**
       * Returns the base 'shape filled' attribute.
       *
       * @return The base flag.
       *
       * @see #setBaseShapesFilled(boolean)
       */
      public boolean getBaseShapesFilled() {
          return this.baseShapesFilled;
      }
  
      /**
       * Sets the base 'shapes filled' flag and sends a
       * {@link RendererChangeEvent} to all registered listeners.
       *
       * @param flag  the flag.
       *
       * @see #getBaseShapesFilled()
       */
      public void setBaseShapesFilled(boolean flag) {
          this.baseShapesFilled = flag;
          fireChangeEvent();
      }
  
      /**
       * Returns <code>true</code> if the renderer should use the fill paint
       * setting to fill shapes, and <code>false</code> if it should just
       * use the regular paint.
       *
       * @return A boolean.
       *
       * @see #setUseFillPaint(boolean)
       */
      public boolean getUseFillPaint() {
          return this.useFillPaint;
      }
  
      /**
       * Sets the flag that controls whether the fill paint is used to fill
       * shapes, and sends a {@link RendererChangeEvent} to all
       * registered listeners.
       *
       * @param flag  the flag.
       *
       * @see #getUseFillPaint()
       */
      public void setUseFillPaint(boolean flag) {
          this.useFillPaint = flag;
          fireChangeEvent();
      }
  
      /**
       * Returns the flag that controls whether or not the x-position for each
       * data item is offset within the category according to the series.
       *
       * @return A boolean.
       *
       * @see #setUseSeriesOffset(boolean)
       *
       * @since 1.0.7
       */
      public boolean getUseSeriesOffset() {
          return this.useSeriesOffset;
      }
  
      /**
       * Sets the flag that controls whether or not the x-position for each
       * data item is offset within its category according to the series, and
       * sends a {@link RendererChangeEvent} to all registered listeners.
       *
       * @param offset  the offset.
       *
       * @see #getUseSeriesOffset()
       *
       * @since 1.0.7
       */
      public void setUseSeriesOffset(boolean offset) {
          this.useSeriesOffset = offset;
          fireChangeEvent();
      }
  
      /**
       * Returns the item margin, which is the gap between items within a
       * category (expressed as a percentage of the overall category width).
       * This can be used to match the offset alignment with the bars drawn by
       * a {@link BarRenderer}).
       *
       * @return The item margin.
       *
       * @see #setItemMargin(double)
       * @see #getUseSeriesOffset()
       *
       * @since 1.0.7
       */
      public double getItemMargin() {
          return this.itemMargin;
      }
  
      /**
       * Sets the item margin, which is the gap between items within a category
       * (expressed as a percentage of the overall category width), and sends
       * a {@link RendererChangeEvent} to all registered listeners.
       *
       * @param margin  the margin (0.0 <= margin < 1.0).
       *
       * @see #getItemMargin()
       * @see #getUseSeriesOffset()
       *
       * @since 1.0.7
       */
      public void setItemMargin(double margin) {
          if (margin < 0.0 || margin >= 1.0) {
              throw new IllegalArgumentException("Requires 0.0 <= margin < 1.0.");
          }
          this.itemMargin = margin;
          fireChangeEvent();
      }
  
      /**
       * Returns a legend item for a series.
       *
       * @param datasetIndex  the dataset index (zero-based).
       * @param series  the series index (zero-based).
       *
       * @return The legend item.
       */
      @Override
      public LegendItem getLegendItem(int datasetIndex, int series) {
  
          CategoryPlot cp = getPlot();
          if (cp == null) {
              return null;
          }
  
          if (isSeriesVisible(series) && isSeriesVisibleInLegend(series)) {
              CategoryDataset dataset = cp.getDataset(datasetIndex);
              String label = getLegendItemLabelGenerator().generateLabel(
                      dataset, series);
              String description = label;
              String toolTipText = null;
              if (getLegendItemToolTipGenerator() != null) {
                  toolTipText = getLegendItemToolTipGenerator().generateLabel(
                          dataset, series);
              }
              String urlText = null;
              if (getLegendItemURLGenerator() != null) {
                  urlText = getLegendItemURLGenerator().generateLabel(
                          dataset, series);
              }
              Shape shape = lookupLegendShape(series);
              Paint paint = lookupSeriesPaint(series);
              Paint fillPaint = (this.useFillPaint
                      ? getItemFillPaint(series, 0) : paint);
              boolean shapeOutlineVisible = this.drawOutlines;
              Paint outlinePaint = (this.useOutlinePaint
                      ? getItemOutlinePaint(series, 0) : paint);
              Stroke outlineStroke = lookupSeriesOutlineStroke(series);
              boolean lineVisible = getItemLineVisible(series, 0);
              boolean shapeVisible = getItemShapeVisible(series, 0);
              LegendItem result = new LegendItem(label, description, toolTipText,
                      urlText, shapeVisible, shape, getItemShapeFilled(series, 0),
                      fillPaint, shapeOutlineVisible, outlinePaint, outlineStroke,
                      lineVisible, new Line2D.Double(-7.0, 0.0, 7.0, 0.0),
                      getItemStroke(series, 0), getItemPaint(series, 0));
              result.setLabelFont(lookupLegendTextFont(series));
              Paint labelPaint = lookupLegendTextPaint(series);
              if (labelPaint != null) {
                  result.setLabelPaint(labelPaint);
              }
              result.setDataset(dataset);
              result.setDatasetIndex(datasetIndex);
              result.setSeriesKey(dataset.getRowKey(series));
              result.setSeriesIndex(series);
              return result;
          }
          return null;
  
      }
  
      /**
       * This renderer uses two passes to draw the data.
       *
       * @return The pass count (<code>2</code> for this renderer).
       */
      @Override
      public int getPassCount() {
          return 2;
      }
  
      /**
       * Draw a single data item.
       *
       * @param g2  the graphics device.
       * @param state  the renderer state.
       * @param dataArea  the area in which the data is drawn.
       * @param plot  the plot.
       * @param domainAxis  the domain axis.
       * @param rangeAxis  the range axis.
       * @param dataset  the dataset.
       * @param row  the row index (zero-based).
       * @param column  the column index (zero-based).
       * @param pass  the pass index.
       */
      @Override
      public void drawItem(Graphics2D g2, CategoryItemRendererState state,
              Rectangle2D dataArea, CategoryPlot plot, CategoryAxis domainAxis,
              ValueAxis rangeAxis, CategoryDataset dataset, int row, int column,
              int pass) {
  
          // do nothing if item is not visible
          if (!getItemVisible(row, column)) {
              return;
          }
  
          // do nothing if both the line and shape are not visible
          if (!getItemLineVisible(row, column)
                  && !getItemShapeVisible(row, column)) {
              return;
          }
  
          // nothing is drawn for null...
          Number v = dataset.getValue(row, column);
          if (v == null) {
              return;
          }
  
          int visibleRow = state.getVisibleSeriesIndex(row);
          if (visibleRow < 0) {
              return;
          }
          int visibleRowCount = state.getVisibleSeriesCount();
  
          PlotOrientation orientation = plot.getOrientation();
  
          // current data point...
          double x1;
          if (this.useSeriesOffset) {
              x1 = domainAxis.getCategorySeriesMiddle(column,
                      dataset.getColumnCount(), visibleRow, visibleRowCount,
                      this.itemMargin, dataArea, plot.getDomainAxisEdge());
          }
          else {
              x1 = domainAxis.getCategoryMiddle(column, getColumnCount(),
                      dataArea, plot.getDomainAxisEdge());
          }
          double value = v.doubleValue();
          double y1 = rangeAxis.valueToJava2D(value, dataArea,
                  plot.getRangeAxisEdge());
  
          if (pass == 0 && getItemLineVisible(row, column)) {
              if (column != 0) {
                  Number previousValue = dataset.getValue(row, column - 1);
                  if (previousValue != null) {
                      // previous data point...
                      double previous = previousValue.doubleValue();
                      double x0;
                      if (this.useSeriesOffset) {
                          x0 = domainAxis.getCategorySeriesMiddle(
                                  column - 1, dataset.getColumnCount(),
                                  visibleRow, visibleRowCount,
                                  this.itemMargin, dataArea,
                                  plot.getDomainAxisEdge());
                      }
                      else {
                          x0 = domainAxis.getCategoryMiddle(column - 1,
                                  getColumnCount(), dataArea,
                                  plot.getDomainAxisEdge());
                      }
                      double y0 = rangeAxis.valueToJava2D(previous, dataArea,
                              plot.getRangeAxisEdge());
  
                      Line2D line = null;
                      if (orientation == PlotOrientation.HORIZONTAL) {
                          line = new Line2D.Double(y0, x0, y1, x1);
                      }
                      else if (orientation == PlotOrientation.VERTICAL) {
                          line = new Line2D.Double(x0, y0, x1, y1);
                      }
                      g2.setPaint(getItemPaint(row, column));
                      g2.setStroke(getItemStroke(row, column));
                      g2.draw(line);
                  }
              }
          }
  
          if (pass == 1) {
              Shape shape = getItemShape(row, column);
              if (orientation == PlotOrientation.HORIZONTAL) {
                  shape = ShapeUtilities.createTranslatedShape(shape, y1, x1);
              }
              else if (orientation == PlotOrientation.VERTICAL) {
                  shape = ShapeUtilities.createTranslatedShape(shape, x1, y1);
              }
  
              if (getItemShapeVisible(row, column)) {
                  if (getItemShapeFilled(row, column)) {
                      if (this.useFillPaint) {
                          g2.setPaint(getItemFillPaint(row, column));
                      }
                      else {
                          g2.setPaint(getItemPaint(row, column));
                      }
                      g2.fill(shape);
                  }
                  if (this.drawOutlines) {
                      if (this.useOutlinePaint) {
                          g2.setPaint(getItemOutlinePaint(row, column));
                      }
                      else {
                          g2.setPaint(getItemPaint(row, column));
                      }
                      g2.setStroke(getItemOutlineStroke(row, column));
                      g2.draw(shape);
                  }
              }
  
              // draw the item label if there is one...
              if (isItemLabelVisible(row, column)) {
                  if (orientation == PlotOrientation.HORIZONTAL) {
                      drawItemLabel(g2, orientation, dataset, row, column, y1,
                              x1, (value < 0.0));
                  }
                  else if (orientation == PlotOrientation.VERTICAL) {
                      drawItemLabel(g2, orientation, dataset, row, column, x1,
                              y1, (value < 0.0));
                  }
              }
  
              // submit the current data point as a crosshair candidate
              int datasetIndex = plot.indexOf(dataset);
              updateCrosshairValues(state.getCrosshairState(),
                      dataset.getRowKey(row), dataset.getColumnKey(column),
                      value, datasetIndex, x1, y1, orientation);
  
              // add an item entity, if this information is being collected
              EntityCollection entities = state.getEntityCollection();
              if (entities != null) {
                  addItemEntity(entities, dataset, row, column, shape);
              }
          }
  
      }
  
      /**
       * Tests this renderer for equality with an arbitrary object.
       *
       * @param obj  the object (<code>null</code> permitted).
       *
       * @return A boolean.
       */
      @Override
      public boolean equals(Object obj) {
  
          if (obj == this) {
              return true;
          }
          if (!(obj instanceof LineAndShapeRenderer)) {
              return false;
          }
  
          LineAndShapeRenderer that = (LineAndShapeRenderer) obj;
          if (this.baseLinesVisible != that.baseLinesVisible) {
              return false;
          }
          if (!ObjectUtilities.equal(this.seriesLinesVisible,
                  that.seriesLinesVisible)) {
              return false;
          }
          if (this.baseShapesVisible != that.baseShapesVisible) {
              return false;
          }
          if (!ObjectUtilities.equal(this.seriesShapesVisible,
                  that.seriesShapesVisible)) {
              return false;
          }
          if (!ObjectUtilities.equal(this.seriesShapesFilled,
                  that.seriesShapesFilled)) {
              return false;
          }
          if (this.baseShapesFilled != that.baseShapesFilled) {
              return false;
          }
          if (this.useOutlinePaint != that.useOutlinePaint) {
              return false;
          }
          if (this.useSeriesOffset != that.useSeriesOffset) {
              return false;
          }
          if (this.itemMargin != that.itemMargin) {
              return false;
          }
          return super.equals(obj);
      }
  
      /**
       * Returns an independent copy of the renderer.
       *
       * @return A clone.
       *
       * @throws CloneNotSupportedException  should not happen.
       */
      @Override
      public Object clone() throws CloneNotSupportedException {
          LineAndShapeRenderer clone = (LineAndShapeRenderer) super.clone();
          clone.seriesLinesVisible
                  = (BooleanList) this.seriesLinesVisible.clone();
          clone.seriesShapesVisible
                  = (BooleanList) this.seriesShapesVisible.clone();
          clone.seriesShapesFilled
                  = (BooleanList) this.seriesShapesFilled.clone();
          return clone;
      }
  
  }
  